The effects of software type, mathematics achievement, spatial visualization, locus-of-control, independent time of investigation, and van Hiele level on geometric conjecturing ability - ProQuest

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The effects of software type, mathematics achievement, spatial visualization, locus-of-control, independent time of investigation, and van Hiele level on geometric conjecturing ability

Elchuck, Larry M. The Pennsylvania State University ProQuest Dissertations Publishing, 1992. 9226687.